An easily assembled IP68 protection level charging gun

Abstract

The utility model relates to an IP68 protection level charging gun of easy assembly, including gun body casing, gun head, pin and cable, the pin is installed in the gun head, and the cable is connected with the pin after being penetrated by the tail end of gun body casing, the gun body casing is provided with sealing structure and portable lock hook structure, the sealing structure includes: first sealing structure, the first sealing structure is the O type sealing ring of setting up between pin and gun head, second sealing structure, the second sealing structure is the frame type sealing ring of setting up between gun body casing and gun head, third sealing structure, the third sealing structure is the glue filling ring cavity of setting up between the tail of gun body casing and cable, the portable buckle structure includes the lock hook and press button, it has multilayer sealing structure, and the sealing effect is good, and the safety performance satisfies the actual application demand.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle charging, and in particular to an easy-to-assemble IP68 protection-rated charging gun. Background Technology

[0002] The competitiveness of the new energy vehicle market has significantly increased, with major breakthroughs achieved in key technologies such as power batteries, drive motors, and vehicle operating systems, and safety levels have been comprehensively improved. The average energy consumption of new pure electric passenger vehicles has dropped to 12.0 kWh / 100 km, and the sales volume of new energy vehicles has reached about 20% of the total sales volume of new vehicles. Highly automated vehicles have achieved commercial application in limited areas and specific scenarios, and the convenience of charging and battery swapping services has been significantly improved.

[0003] However, current charging guns suffer from low overall strength, complex assembly processes, low consistency, and protection levels that only meet the IP55 standard when facing harsh environmental conditions. The safety performance of products on the market cannot meet the needs of practical applications. In the event of flooding, prolonged immersion in water could easily damage the charging gun, rendering it unusable. Therefore, with the increasing number of new energy vehicles on the road, safe and reliable charging products are what the market demands. Summary of the Invention

[0004] In order to overcome at least one of the problems mentioned above, this utility model provides an easily assembled IP68 protection-rated charging gun.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an easily assembled IP68 protection-grade charging gun, including a gun body shell, a gun head, a pin, and a cable. The pin is installed inside the gun head, and the cable passes through the tail end of the gun body shell and connects to the pin. The gun body shell is provided with a sealing structure and a portable locking hook structure. The sealing structure includes: The first sealing structure is an O-ring seal disposed between the pin and the nozzle; the pin is provided with a corresponding sealing ring groove so that the O-ring seal is fitted onto the pin; the nozzle is provided with a slot for installing the pin, and the center of the slot is a narrow hole structure that is in close contact with the pin and the O-ring seal. The second sealing structure is a frame-shaped sealing ring disposed between the gun body shell and the gun head. The gun head has an insertion section at its tail end. The periphery of the insertion section is fastened to the front opening of the gun body shell. The periphery of the insertion section is provided with a corresponding sealing ring groove. The third sealing structure is a glue-filled annular cavity set between the tail of the gun body and the cable. A cable sheath is also set between the cable and the tail of the gun body. The cable sheath is tightly clamped on the cable. The tail of the gun body is an open structure. The front end of the cable sheath is fastened in the open structure. The bottom end of the open structure is provided with a reserved depth. A glue-filled annular cavity is formed between the bottom end of the open structure and the cable sheath. The portable locking hook structure includes a locking hook and a pressing button. The middle part of the locking hook is hinged to the upper part of the insertion section of the gun head by a torsion spring and a lever structure. The front end of the locking hook extends out of the insertion section, and the rear end of the locking hook forms a pressing part. The upper part of the front opening of the gun body shell is also provided with a buckle receiving cavity. The middle and rear ends of the locking hook are inserted into the buckle receiving cavity. The pressing button is located on the upper part of the buckle receiving cavity and is connected to the pressing part. The locking hook is raised and lowered by pressing.

[0006] Preferably, the gun head is provided with a limiting ring protrusion in the middle, an insertion section is formed on the rear side of the limiting ring protrusion, and a rearwardly extending bracket is provided on the upper part of the limiting ring protrusion, and the locking hook is installed on the bracket; there is a gap between the bracket and the insertion section.

[0007] Preferably, the bracket is provided with a hinge seat and a hinge shaft.

[0008] Preferably, the limiting ring protrusion is provided with a notch for the movement of the locking hook.

[0009] Preferably, the outer wall of the insertion section is provided with a first protrusion, and the inner wall of the gun body is provided with a corresponding buckle.

[0010] Preferably, the device also includes a bushing, the pin is fixed inside the gun head by the bushing, the front end of the bushing is provided with multiple fastening posts corresponding to the pin, the outer wall of the bushing is provided with a second protruding buckle, and the inner wall of the insertion section is provided with a corresponding fastening position.

[0011] Preferably, the end of the pin is provided with a buckle groove, and the end of the buckle post has a buckle hook that snaps into the buckle groove.

[0012] Preferably, the number of pins is five, and the gun head is provided with a corresponding number of slots.

[0013] Preferably, the gun housing includes a main housing and an auxiliary housing. The lower center of the main housing is an open area, and the auxiliary housing is disposed in the open area to close the side of the main housing.

[0014] The beneficial effects of this utility model are: an easily assembled IP68-rated charging gun with a multi-layer sealing structure, providing excellent sealing performance and meeting practical application requirements. Even in the event of flooding, the charging gun will not be damaged even after prolonged immersion in water, thus meeting the IP68 protection level. Furthermore, the snap-fit ​​design facilitates assembly and improves production efficiency. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the overall structure of the easy-to-assemble IP68 protection-level charging gun described in this utility model; Figure 2 yes Figure 1 Schematic diagram of the structure from the mid-rear view; Figure 3 This is a schematic diagram of the disassembled structure of the easily assembled IP68 protection-level charging gun described in this utility model; Figure 4 yes Figure 3 Enlarged view of the gun head structure; Figure 5 yes Figure 3 Enlarged schematic diagram of the center pin structure; Figure 6 This is a cross-sectional structural diagram of the easily assembled IP68 protection-level charging gun described in this utility model. Figure 7 yes Figure 6 Enlarged view of the gun head mounting structure; Figure 8 yes Figure 6 Enlarged view of the cable tail mounting structure.

[0017] Explanation of reference numerals in the attached figures

[0018] 1. Gun body casing; 11. Main casing; 12. Auxiliary casing; 13. Buckle housing cavity. 2. Gun head; 21. Slot opening; 22. Insertion section; 23. First protruding buckle; 24. Sealing ring groove; 25. Limiting ring protrusion; 26. Notch. 3. Frame-type sealing ring, 4. Pin; 41. Sealing ring groove; 42. Snap groove; 43. O-ring seal. 5. Cable; 51. Cable sheath; 52. Potting hole; 50. Potting ring cavity. 6. Locking hook; 61. Pressing part; 62. Hinge lug; 7. Press button, 63. Torsion spring, 8. Bracket base; 81. Hinge base; 82. Hinge shaft. 9. Bushing; 91. Buckle post; 92. Second protruding buckle; 93. Buckle hook. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] like Figure 1-3 The easily assembled IP68-rated charging gun shown consists of a gun body shell 1, a gun head 2, a pin 4, and a cable 5. The pin 4 is installed inside the gun head 2. The cable 5 passes through the tail end of the gun body shell 1 and connects to the pin 4. The gun body shell 1 has a multi-layered sealing structure and a portable locking hook 6 structure, which provides good waterproof performance, high protection level, and improves the structural strength of the product. The protection level meets IP68.

[0021] In this embodiment, the sealing structure comprises a three-layer sealing structure consisting of a first sealing structure, a second sealing structure, and a third sealing structure.

[0022] See Figure 3 , 5 7. The first sealing structure is an O-ring 43 disposed between the insert pin 4 and the nozzle head 2. The insert pin 4 has a corresponding sealing ring groove 41 so that the O-ring 43 fits onto the insert pin 4. The nozzle head 2 has a slot 21 for installing the insert pin 4. The center of the slot 21 is a narrow hole structure that fits tightly against the insert pin 4 and the O-ring 43. The central wall of the slot 21 is adapted to fit against the insert pin 4.

[0023] See Figure 3 , 4 7. Second sealing structure. The second sealing structure is a frame-shaped sealing ring 3 set between the gun body housing 1 and the gun head 2. The tail end of the gun head 2 is provided with an insertion section 22. The insertion section 22 is the part that is inserted into the front opening of the gun body housing 1 (its front end is the plug end, used to insert into the vehicle body charging port). The periphery of the insertion section 22 is fastened to the front opening of the gun body housing 1. The periphery of the insertion section 22 is provided with a corresponding sealing ring groove 24.

[0024] See Figure 3 , 6 8. The third sealing structure is a glue-filling annular cavity 50 located between the tail of the gun body shell 1 and the cable 5. A cable sheath 51 is also provided between the cable 5 and the tail of the gun body shell 1. The cable sheath 51 is tightly clamped to the cable 5. The tail of the gun body shell 1 is an open structure. The front end of the cable sheath 51 is fastened into the open structure. The bottom end of the open structure is provided with a reserved depth. The bottom end of the open structure and the cable sheath 51 form a glue-filling annular cavity 50. The glue-filling annular cavity 50 is filled with sealant to achieve a sealing effect. If necessary, a glue-filling opening 52 is opened in the glue-filling annular cavity 50 to allow the glue to be poured in.

[0025] See Figure 4 ,7 The portable locking hook structure consists of a locking hook 6 and a pressing button 7. The middle part of the locking hook 6 is hinged to the upper part of the insertion section 22 of the gun head 2 by a torsion spring 63 in a lever structure. The front end of the locking hook 6 extends out of the insertion section 22, and the rear end of the locking hook 6 forms a pressing part 61. The upper part of the front opening of the gun body shell 1 is also provided with a buckle receiving cavity 13. The middle and rear ends of the locking hook 6 are inserted into the buckle receiving cavity 13. The pressing button 7 is located on the upper part of the buckle receiving cavity 13 and is connected to the pressing part 61. The buckle is raised, lowered and swung by pressing.

[0026] In this embodiment, see Figure 4 The gun head 2 has a limiting ring protrusion 25 in the middle, and an insertion section 22 is formed on the rear side of the limiting ring protrusion 25. The front end is a plug end for insertion into the vehicle body charging port. The upper part of the limiting ring protrusion 25 has a rearwardly extending bracket seat 8. The locking hook 6 is installed on the bracket seat 8. There is a gap between the bracket seat 8 and the insertion section 22 so that the bracket seat 8 and the insertion section 22 can enter different cavities of the front opening of the gun body housing 1, so as not to affect the sealing effect between the gun body housing 1 and the insertion section 22.

[0027] In this embodiment, the bracket base 8 is provided with a hinge seat 81 and a hinge shaft 82. The hinge seat 81 is located in the middle of the bracket base 8 and extends upward from both sides. The middle part of the locking hook 6 has a corresponding hinge ear 62, which is installed by the hinge shaft 82.

[0028] See Figure 4 The upper part of the limiting ring protrusion 25 is provided with a notch 26 for the movement of the locking hook 6, so that the locking hook 6 has room to move, locking the charging port of the vehicle body or unlocking it.

[0029] See Figure 4 The insertion section 22 and the gun body shell 1 are connected by a snap-fit ​​method. The outer wall of the insertion section 22 is provided with a first protrusion 23, and the inner wall of the gun body shell 1 is provided with a corresponding fastening position. After installation, the first protrusion 23 enters the fastening position.

[0030] See Figure 5 This embodiment also includes a bushing 9 for reinforcing the installation of the pin 4. The pin 4 is fixed inside the gun head 2 by the bushing 9. The front end of the bushing 9 is provided with a plurality of snap posts 91 corresponding to the pin 4. The outer wall of the bushing 9 is provided with a second protruding snap 92, and the inner wall of the insertion section 22 is provided with a corresponding snap position.

[0031] See Figure 5 The pin 4 has a groove 42 at its tail end, and the end of the snap post 91 has a hook 93 that snaps into the groove 42, thereby strengthening the fixation of the pin 4. The hook 93 is an inwardly turned-up structure at the end of the snap post 91.

[0032] See Figure 5 There are five pins 4, and the gun head 2 has a corresponding number of slots 21.

[0033] In this embodiment, see Figure 3 The gun housing 1 includes a main housing 11 and an auxiliary housing 12. The lower center of the main housing 11 is an open area, and the auxiliary housing 12 is disposed in the open area to close the side of the main housing 11. The main housing 11 and the auxiliary housing 12 are connected by a snap-fit ​​method, and snap-fit ​​positions and snap-fit ​​grooves are respectively provided around the perimeter.

[0034] The insert pin 4 is fixed inside the gun head 2 by a snap-fit ​​mechanism using a bushing 9; the gun head 2 is snapped into the main housing 11 of the gun body housing 1 by a snap-fit ​​mechanism; the main housing 11 and the auxiliary housing 12 are connected by a snap-fit ​​mechanism; the installation method is convenient and efficient. Furthermore, it is easy to use due to its portable locking hook structure and press-down mechanism.

[0035] The easily assembled IP68-rated charging gun of this invention features a multi-layered sealing structure, providing excellent sealing and meeting practical application safety requirements. Even in the event of flooding or prolonged immersion in water, the charging gun will not be damaged, thus fulfilling the IP68 protection standard. Furthermore, its snap-fit ​​design facilitates assembly and improves production efficiency.

[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. An easy-to-assemble IP68 protection class charging gun, characterized in that, The gun includes a gun body housing, a gun head, a pin, and a cable. The pin is installed inside the gun head. The cable passes through the rear end of the gun body housing and connects to the pin. The gun body housing is equipped with a sealing structure and a portable locking hook structure. The sealing structure includes: The first sealing structure is an O-ring seal disposed between the pin and the nozzle; the pin is provided with a corresponding sealing ring groove so that the O-ring seal is fitted onto the pin; the nozzle is provided with a slot for installing the pin, and the center of the slot is a narrow hole structure that is in close contact with the pin and the O-ring seal. The second sealing structure is a frame-shaped sealing ring disposed between the gun body shell and the gun head. The gun head has an insertion section at its tail end. The periphery of the insertion section is fastened to the front opening of the gun body shell. The periphery of the insertion section is provided with a corresponding sealing ring groove. The third sealing structure is a glue-filled annular cavity set between the tail of the gun body and the cable. A cable sheath is also set between the cable and the tail of the gun body. The cable sheath is tightly clamped on the cable. The tail of the gun body is an open structure. The front end of the cable sheath is fastened in the open structure. The bottom end of the open structure is provided with a reserved depth. A glue-filled annular cavity is formed between the bottom end of the open structure and the cable sheath. The portable locking hook structure includes a locking hook and a pressing button. The middle part of the locking hook is hinged to the upper part of the insertion section of the gun head by a torsion spring and a lever structure. The front end of the locking hook extends out of the insertion section, and the rear end of the locking hook forms a pressing part. The upper part of the front opening of the gun body shell is also provided with a buckle receiving cavity. The middle and rear ends of the locking hook are inserted into the buckle receiving cavity. The pressing button is located on the upper part of the buckle receiving cavity and is connected to the pressing part. The locking hook is raised and lowered by pressing.

2. An easy-to-assemble IP68 protection class charging gun according to claim 1, characterized in that: The gun head is provided with a limiting ring protrusion in the middle, and an insertion section is formed on the rear side of the limiting ring protrusion. A rearwardly extending bracket is provided on the upper part of the limiting ring protrusion, and the locking hook is installed on the bracket. There is a gap between the bracket and the insertion section.

3. An easy-to-assemble IP68 protection class charging gun according to claim 2, characterized in that: The bracket is provided with a hinge seat and a hinge shaft.

4. An easy-to-assemble IP68 protection class charging gun according to claim 3, characterized in that: The limiting ring protrusion is provided with a notch for the movement of the locking hook.

5. An easy-to-assemble IP68 protection class charging gun according to claim 4, characterized in that: The outer wall of the insertion section is provided with a first protruding buckle, and the inner wall of the gun body is provided with a corresponding buckle.

6. An easy-to-assemble IP68 protection class charging gun according to claim 5, characterized in that: It also includes a bushing, the insert pin is fixed inside the gun head by the bushing, the front end of the bushing is provided with multiple buckles corresponding to the insert pin, the outer wall of the bushing is provided with a second protruding buckle, and the inner wall of the insertion section is provided with a corresponding buckle.

7. An easy-to-assemble IP68 protection class charging gun according to claim 6, characterized in that: The pin has a groove at its tail end, and the end of the snap post has a hook that snaps into the groove.

8. An easy-to-assemble IP68 protection class charging gun according to claim 7, characterized in that: The number of pins is five, and the gun head is provided with a corresponding number of slots.

9. An easy-to-assemble IP68 protection class charging gun according to claim 8, characterized in that: The gun body housing includes a main housing and an auxiliary housing. The lower center of the main housing is an open area, and the auxiliary housing is disposed in the open area to close the side of the main housing.

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